Re: Amargasaurus...

["T. Mike Keesey" <tmk@dinosauricon.com>]

_Giganotosaurus_ is Albian.

On Fri, 27 Apr 2001, Steven Coombs wrote:

> Here are the possible taxa that it may of attacked:
>
> Basal Ornithischia
> Pisanosaurus mertii (Ischigualasto Fm.; Carnian; San Juan)

Far too early.

> Ankylosauridae
> N. gen. et sp. (Allen Fm.; early Maastrichtian; Neuquen)

Too late.

> Stegosauridae
> Stegosauridae indet. (La Amarga Fm; Hauterivian; Neuquen)

Too early.

> Dryomorpha
> Gasparinisaura cincosaltensis (Rio Coloardo Fm.; Anacleto Mb.;
> Coniacian-Santonian; Neuquen)
> Loncosaurus argentinus (Mata Amarilla Fm.; Santonian-early Campanian;
> Santa Cruz)

Too late.

> N. gen. et sp. (Bajo Barreal Fm.; ?Cenomanian; Chubut)

Close!

> Hadrosauridae
> Secernosaurus koerneri (?Laguna Palacios Fm.; Maastrichtian; Chubut)
> "Kritosaurus" australia (Los Alamitos Fm.; Campanian-early Maastrichtian;
> Rio Negro)
> Lambeosaurinae indet. (Allen Fm.; early Maastrichtian; Rio Negro)

Too late.

Even _Amargasaurus_ is too early, as Luis Rey notes alongside his
illustration.

The other dinosaurs from the Rio Limay Fm. are the dryomorph Anabisetia
[nomen nudum], and the neosauropods _Andesaurus_, _Argentinosaurus_,
_Rebbachisaurus_.

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